[SVXer95]

There are several ways that you can tell if the exhaust gaskets are bad. First, put the car in the air and start it. Then get under there and try to listen for a leak. If you still cannot tell, you can put your hand around the joints in the exhaust and feel for a leak. Do not touch the exhaust as it will be hot. You can also use a stethoscope to listen for the sound.

The bearings will sound like a roaring or groaning sound from the rear of the car in the wheel area. Put the rear seat down and have someone sit back there and listen while you are driving. This works well because there is no sound deadening in the trunk. If you hear the noise coming from the rear wheels, it is the bearing(s). Also, you can put the rear of the car in the air and check for excessive axial (in and out) play in the rear wheels. This is a tell-tale sign of bearing failure.